Sentinel State 55-28 Unit

Oil & Gas Property in Reeves County, TX

Map of Wells Full Screen Map 3-D Map

Property Summary

Key data points for Sentinel State 55-28 Unit

County	Reeves County, TX
Operator	COTERRA ENERGY OPERATING CO.
Production Dates	Dec 2017 - Mar 2026
Total Oil Production	4,715,352 BBLs
Total Gas Production	48,289,861 MCF
Recent Oil Production	23,184 BBLs in Feb 2026
Recent Gas Production	433,819 MCF in Feb 2026
Wells on Property	15

Our Valuation Estimates for Sentinel State 55-28 Unit

ShaleAssessment™

Not Available

MarketMultiple™

$5,646,577 **

* Assessment based on future expected revenue
** Based on a 36 month multiple of average monthly estimated revenue

Based on a decimal interest

Sentinel State 55-28 Unit Production Graph

Aggregated production of all wells and leases associated with this property

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to oil and gas production for Sentinel State 55-28 Unit
from Dec 2017 to Mar 2026

Wells on Sentinel State 55-28 Unit

API #	Well Name	Operator	Status	County	Est. Daily Oil Prod.	Est. Daily Gas Prod.	Est. Daily Water Prod.	Latitude	Longitude
API #	Well Name	Operator	Status	County	Est. Daily Oil Prod.	Est. Daily Gas Prod.	Est. Daily Water Prod.	Latitude	Longitude
42-389-35824	SENTINEL STATE 55-28 UNIT 1H	COTERRA ENERGY OPERATING CO.	Producing	Reeves County, TX				31.577749	-103.806104
42-389-36910	SENTINEL STATE 55-28 UNIT 5H	COTERRA ENERGY OPERATING CO.	Producing	Reeves County, TX				31.577559	-103.794120
42-389-36911	SENTINEL STATE 55-28 UNIT 6H	COTERRA ENERGY OPERATING CO.	Producing	Reeves County, TX				31.577538	-103.794040
42-389-37542	SENTINEL STATE 55-28 UNIT 7H	COTERRA ENERGY OPERATING CO.	Producing	Reeves County, TX				31.577612	-103.805207
42-389-37543	SENTINEL STATE 55-28 UNIT 8H	COTERRA ENERGY OPERATING CO.	Producing	Reeves County, TX				31.577235	-103.803262
42-389-37544	SENTINEL STATE 55-28 UNIT 9H	COTERRA ENERGY OPERATING CO.	Producing	Reeves County, TX				31.577235	-103.803198
42-389-37545	SENTINEL STATE 55-28 UNIT 10H	COTERRA ENERGY OPERATING CO.	Producing	Reeves County, TX				31.577235	-103.801109
42-389-37546	SENTINEL STATE 55-28 UNIT 11H	COTERRA ENERGY OPERATING CO.	Producing	Reeves County, TX				31.577235	-103.801045
42-389-40101	SENTINEL STATE 55-28 UNIT 12H	COTERRA ENERGY OPERATING CO.	Producing	Reeves County, TX				31.577754	-103.793864
42-389-40102	SENTINEL STATE 55-28 UNIT 13H	COTERRA ENERGY OPERATING CO.	Producing	Reeves County, TX				31.577755	-103.793800
42-389-40103	SENTINEL STATE 55-28 UNIT 14H	COTERRA ENERGY OPERATING CO.	Producing	Reeves County, TX				31.577755	-103.793671
42-389-40104	SENTINEL STATE 55-28 UNIT 15H	COTERRA ENERGY OPERATING CO.	Producing	Reeves County, TX				31.577485	-103.801563
42-389-40105	SENTINEL STATE 55-28 UNIT 16H	COTERRA ENERGY OPERATING CO.	Producing	Reeves County, TX				31.577405	-103.801496
42-389-40106	SENTINEL STATE 55-28 UNIT 17H	COTERRA ENERGY OPERATING CO.	Producing	Reeves County, TX				31.577405	-103.801432
42-389-40107	SENTINEL STATE 55-28 UNIT 18H	COTERRA ENERGY OPERATING CO.	Producing	Reeves County, TX				31.577755	-103.793735

Leases included in Sentinel State 55-28 Unit

Lease #	Lease Name	Operator	County	Monthly Oil Prod.	Monthly Gas Prod.
Lease #	Lease Name	Operator	County	Monthly Oil Prod.	Monthly Gas Prod.
08-284511	SENTINEL STATE 55-28 UNIT 1H	COTERRA ENERGY OPERATING CO.	Reeves County, TX
08-286407	SENTINEL STATE 55-28 UNIT 5H	COTERRA ENERGY OPERATING CO.	Reeves County, TX
08-286409	SENTINEL STATE 55-28 UNIT 6H	COTERRA ENERGY OPERATING CO.	Reeves County, TX
08-287338	SENTINEL STATE 55-28 UNIT 7H	COTERRA ENERGY OPERATING CO.	Reeves County, TX
08-287343	SENTINEL STATE 55-28 UNIT 8H	COTERRA ENERGY OPERATING CO.	Reeves County, TX
08-287347	SENTINEL STATE 55-28 UNIT 11H	COTERRA ENERGY OPERATING CO.	Reeves County, TX
08-287348	SENTINEL STATE 55-28 UNIT 9H	COTERRA ENERGY OPERATING CO.	Reeves County, TX
08-287395	SENTINEL STATE 55-28 UNIT 10H	COTERRA ENERGY OPERATING CO.	Reeves County, TX
08-295473	SENTINEL STATE 55-28 UNIT 12H	COTERRA ENERGY OPERATING CO.	Reeves County, TX
08-295475	SENTINEL STATE 55-28 UNIT 13H	COTERRA ENERGY OPERATING CO.	Reeves County, TX
08-295476	SENTINEL STATE 55-28 UNIT 14H	COTERRA ENERGY OPERATING CO.	Reeves County, TX
08-295477	SENTINEL STATE 55-28 UNIT 18H	COTERRA ENERGY OPERATING CO.	Reeves County, TX
08-295478	SENTINEL STATE 55-28 UNIT 16H	COTERRA ENERGY OPERATING CO.	Reeves County, TX
08-295479	SENTINEL STATE 55-28 UNIT 17H	COTERRA ENERGY OPERATING CO.	Reeves County, TX
08-295586	SENTINEL STATE 55-28 UNIT 15H	COTERRA ENERGY OPERATING CO.	Reeves County, TX

Nearby Properties

These are the closest 20 properties to the Sentinel State 55-28 Unit property.

Property Name	Location	Oil Prod.	Gas Prod.	Prod. Period
Big Sky 55-16	Reeves County, TX	236 BBLs	852 MCF	Mar 2026
Big Sky State 55-16 Unit	Reeves County, TX	17,259 BBLs	160,639 MCF	Mar 2026
Big Timber State 57-25 Unit	Reeves County, TX	426 BBLs	4,180 MCF	Mar 2026
Castle	Reeves County, TX	59,039 BBLs	487,662 MCF	Mar 2026
Cleveland State 57-23	Reeves County, TX	1,276 BBLs	10,092 MCF	Mar 2026
Emigrant State 57-24 1H	Reeves County, TX	1,454 BBLs	11,991 MCF	Mar 2026
Hardcastle State 27-34-39	Reeves County, TX	10,271 BBLs	129,500 MCF	Mar 2026
Lexington 55-4-41 Unit	Reeves County, TX	1,137 BBLs	17,037 MCF	Mar 2026
Marmot 55-14 Unit	Reeves County, TX	1,192 BBLs	9,333 MCF	Mar 2026
North Table State 57-25 Unit	Reeves County, TX	9,462 BBLs	88,634 MCF	Mar 2026
Pagoda State 57-13 Unit	Reeves County, TX	3,489 BBLs	41,783 MCF	Mar 2026
Sheridan	Reeves County, TX	8,077 BBLs	61,571 MCF	Mar 2026
South Table State 57-25 Unit	Reeves County, TX	7,901 BBLs	83,863 MCF	Mar 2026
State Absaroka Unit	Reeves County, TX	18,151 BBLs	203,979 MCF	Mar 2026
State Jobe 40-6 Unit	Reeves County, TX	2,583 BBLs	34,798 MCF	Mar 2026
State Trooper	Reeves County, TX	8,445 BBLs	57,710 MCF	Mar 2026
Vicksburg State	Reeves County, TX	28,926 BBLs	220,103 MCF	Mar 2026
Wood State 57-26 Unit	Reeves County, TX	4,366 BBLs	59,712 MCF	Mar 2026
Wood-Dance State 26-35-38 A 1H	Reeves County, TX	4,680 BBLs	87,715 MCF	Mar 2026
Yorktown State	Reeves County, TX	7,244 BBLs	52,269 MCF	Mar 2026

Companies in the Area

These are the closest 20 companies operating near the Sentinel State 55-28 Unit property.

Company Name
Alchemist Energy, LLC
Anadarko E&P Onshore LLC
Apache Corporation
Arch Oil & Gas, LLC
Cimarex Energy Co
Coterra Energy Operating Co.
Crescent Energy Operating, LLC
Energen Resources Corporation
EOG Resources Inc
Eqv Operating LLC
Forest Oil Corporation
Greenlake Energy Operating, LLC
Lakewood Energy LLC
Mewbourne Oil Company
Notting Hill Energy LLC
PDC Permian, Inc.
R K Petroleum Corp.
Resolute Natural Res. Co., LLC
TRP Operating LLC
WPX Energy Permian, LLC

Frac'ing activity on Sentinel State 55-28 Unit

API #	Well Name	Start Date	End Date	Vertical Depth	Total Water Volume
API #	Well Name	Start Date	End Date	Vertical Depth	Total Water Volume
42-389-35824	Sentinel State 55-28 Unit 1H
42-389-36910	Sentinel State 55-28 Unit 5H
42-389-36911	Sentinel State 55-28 Unit 6H
42-389-37542	SENTINEL STATE 55-28 UNIT 7H
42-389-37543	SENTINEL STATE 55-28 UNIT 8H
42-389-37544	Sentinel State 55 - 28 Unit 9H
42-389-37545	SENTINEL STATE 55-28 UNIT 10H
42-389-37545	SANDLOT STATE C113 SL
42-389-37546	SENTINEL STATE 55-28 UNIT 11H
42-389-40101	SENTINEL STATE 55-28 UNIT 12H
42-389-40102	SENTINEL STATE 55-28 UNIT 13H
42-389-40103	SENTINEL STATE 55-28 UNIT 14H
42-389-40104	Sentinel State 55-28 Unit 15H
42-389-40105	Sentinel State 55-28 Unit 16H
42-389-40106	Sentinel State 55-28 Unit 17H
42-389-40107	SENTINEL STATE 55-28 UNIT 18H

Owners of Sentinel State 55-28 Unit

Royalty Ownership data is obtained from public records

Year	Owner	Property Name	Operator
2025	CIMAREX ENERGY CO WI	SENTINEL STATE 55-28 UNIT #1	CIMAREX ENERGY
2025	CIMAREX ENERGY CO WI	SENTINEL STATE 55-28 UNIT #1	CIMAREX ENERGY
2025	CIMAREX ENERGY CO WI	SENTINEL STATE 55-28 UNIT #1	CIMAREX ENERGY
2025	CIMAREX ENERGY CO WI	SENTINEL STATE 55-28 UNIT #5	CIMAREX ENERGY
2025	CIMAREX ENERGY CO WI	SENTINEL STATE 55-28 UNIT #1	CIMAREX ENERGY
2025	CIMAREX ENERGY CO WI	SENTINEL STATE 55-28 UNIT 15	CIMAREX ENERGY
2025	CIMAREX ENERGY CO WI	SENTINEL STATE 55-28 UNIT #1	CIMAREX ENERGY
2025	CIMAREX ENERGY CO WI	SENTINEL STATE 55-28 UNIT #1	CIMAREX ENERGY
Displaying 8 of 135 Owners -- Full Ownership Data Available for Subscribers Only

Oil & Gas Sales on Sentinel State 55-28 Unit

Lease #	Lease Name	Reporting Period	Product	Volume	Value	Gross Price	Purchaser	Producer
Lease #	Lease Name	Reporting Period	Product	Oil Volume	Oil Value	Calculated Oil Price	Purchaser	Producer
08-284511	SENTINEL STATE 55-28 UNIT 1H	Feb 2026						COTERRA ENERGY OPERATING CO.
08-284511	SENTINEL STATE 55-28 UNIT 1H	Feb 2026						COTERRA ENERGY OPERATING CO.
08-284511	SENTINEL STATE 55-28 UNIT 1H	Feb 2026					COTERRA ENERGY OPERATING CO.	COTERRA ENERGY OPERATING CO.
08-284511	SENTINEL STATE 55-28 UNIT 1H	Feb 2026					ENERGY TRANSFER CRUDE MARKETING LLC	CIMAREX ENERGY CO. OF COLORADO
08-286407	SENTINEL STATE 55-28 UNIT 5H	Feb 2026						COTERRA ENERGY OPERATING CO.
08-286407	SENTINEL STATE 55-28 UNIT 5H	Feb 2026						COTERRA ENERGY OPERATING CO.
08-286407	SENTINEL STATE 55-28 UNIT 5H	Feb 2026					COTERRA ENERGY OPERATING CO.	COTERRA ENERGY OPERATING CO.
08-286409	SENTINEL STATE 55-28 UNIT 6H	Feb 2026						COTERRA ENERGY OPERATING CO.
08-286409	SENTINEL STATE 55-28 UNIT 6H	Feb 2026						COTERRA ENERGY OPERATING CO.
08-286409	SENTINEL STATE 55-28 UNIT 6H	Feb 2026					COTERRA ENERGY OPERATING CO.	COTERRA ENERGY OPERATING CO.
08-287338	SENTINEL STATE 55-28 UNIT 7H	Feb 2026						COTERRA ENERGY OPERATING CO.
08-287338	SENTINEL STATE 55-28 UNIT 7H	Feb 2026						COTERRA ENERGY OPERATING CO.
08-287338	SENTINEL STATE 55-28 UNIT 7H	Feb 2026					COTERRA ENERGY OPERATING CO.	COTERRA ENERGY OPERATING CO.
08-287343	SENTINEL STATE 55-28 UNIT 8H	Feb 2026						COTERRA ENERGY OPERATING CO.
08-287343	SENTINEL STATE 55-28 UNIT 8H	Feb 2026						COTERRA ENERGY OPERATING CO.
08-287343	SENTINEL STATE 55-28 UNIT 8H	Feb 2026					COTERRA ENERGY OPERATING CO.	COTERRA ENERGY OPERATING CO.
08-287347	SENTINEL STATE 55-28 UNIT 11H	Feb 2026						COTERRA ENERGY OPERATING CO.
08-287347	SENTINEL STATE 55-28 UNIT 11H	Feb 2026						COTERRA ENERGY OPERATING CO.
08-287347	SENTINEL STATE 55-28 UNIT 11H	Feb 2026					COTERRA ENERGY OPERATING CO.	COTERRA ENERGY OPERATING CO.
08-287348	SENTINEL STATE 55-28 UNIT 9H	Feb 2026						COTERRA ENERGY OPERATING CO.
08-287348	SENTINEL STATE 55-28 UNIT 9H	Feb 2026						COTERRA ENERGY OPERATING CO.
08-287348	SENTINEL STATE 55-28 UNIT 9H	Feb 2026					COTERRA ENERGY OPERATING CO.	COTERRA ENERGY OPERATING CO.
08-287395	SENTINEL STATE 55-28 UNIT 10H	Feb 2026						COTERRA ENERGY OPERATING CO.
08-287395	SENTINEL STATE 55-28 UNIT 10H	Feb 2026						COTERRA ENERGY OPERATING CO.
08-287395	SENTINEL STATE 55-28 UNIT 10H	Feb 2026					COTERRA ENERGY OPERATING CO.	COTERRA ENERGY OPERATING CO.